Car-bolster.



O. H. ANDERSON.

CAR BOLSTEB.

973,424, *Ptented Dec.13,'191 0 car, and is in the nature ofan improvement? I CHARLES en. ANDERSON, or sEATrLnwAsHmG roNfl cAgkBoLstrnn.

I Specification of Letters Patent. Application filed Au ust' is, 1919, Serial no. erg-2319'.

upon the construction shown and describedl in Letters Patent No. 941,691, granted to me: November 30. 1909, for' car-bolsters.

A ball and socketcenter-bearing for the companion bolsters has advantages over for a ball-Eire It).

plates 6.

other types of center bearings particularly when the car encounters short curves in, or changes in inclination of, the track; and my present object is to provide certain improvements upon the aforesaid patented construction with a view to avoiding material friction and wear at the ball and socket, and in other Ways to better adapt the center-bearing for contribution tothe safety and smoothness of travel of the carbody. I

In the drawingI igure 1 is a side elevation, partly in section, of a air of companion body and truck bolsters provided with my improvements; Fig. 2, is an enlarged section taken on irregular line 2-2 in Fig. 1; and Fig. 3, an enlarged broken section on line 3 in Fig. l.

The numeral 1 designates a steel car-body bolster provided with a Hat center-plate portion and laterally-projecting bearing Fitting against and secured to the part 5 is a bearingplate 7 having a central opening 8 and an annular socket 9 In the base of the socket I.) is a ball-race wearing-ring 11. The plate 7 formed with a central socket 12.

The numeral 13 designates a steel truckbolster p 'ovided at opposite ends with bearings 14 ,or rollers lfiregistering with the under surfaces of the bearing plates 6. The

journals'of theirollers 15 are fitted with grease-cups 16 or other suitable Iuln'icators. At the center of the bolster 13 is a semisphei'ical recess 17 fitted with a Babbitt, or similar, lining 18 and forming a socket. In-- tel-posed between the truck-bolster and bearing-plate 7 is a hollow bearing-piece 19 fitted with a ring 20,,forining the lower ballrace bearing-ring, andjhaving a central tapering boss-portion 21 fitting'looselyliifito r the socket 12. The bearing- 19 519 formed wlth a semi-spherical head 22,-fittinj the socket 17 of the truck-bolster, andjfi groove 23 fitting-loosely over an annular tongue 24 surrounding said socket. flTlje semi-spherical head 22 and babbitted' 'tecess 17 form a ball and socket joint, from the surrounding tongue andgroove ednni' tion tends to exclude dust. The hollow hear:

ing-piece 19 has a chamber25 with an ope 1ng26 at its top registering with h1g8. In the ball-member 22 of theflbeann v are outlet-openings 27 for lubricatin "oi contained in the chamber 25. The lubricant is charged into the chamber through a feed- UNITED TE PATENT OFFICE Patented Dec. 13;

tube 28, which is on the car-body bolster and registers with the opening, or passage 8.

In practice, the car-body bolster 4 may turn without material friction on the ballbearing 10, and it and the bearing-piece 19 may rock withinreasonable limits on the ball and socket connection, which is kept well lubricated by the oil from thechamber 25. The rocking of the car-body bolster in the direction of its length is limited by contact of its plates 6 with the rollers 15. Between the parts 7 and 19 there is a space or channel 29 through which oil, splashing from the chamber 25, will pass to the ball-bearing.

While I prefer to construct my improvements as shown and described, they may be variously modified in the matter of de tails of construction without departing from the spirit of" my invent-ion as defined by the claims.

What I claim as new by Letters Patent is- 1. In combination, a car-body bolster, a truck-bolster and a ball and socket bearingconnection for the bolsters, the ball-member forming a lubricant-teservoir provided with an outlet leading to the socket-niembentor the, purpose set forth.

2. In combination, a car-body bolster, a truck-bolster and a ball and socket bearingconneetion for the bolsters, the ball-bearing member forming alubricant-reservoir and desire to secure member, and the car-body bolster having a lubricant. cliargmgassage communicating with this reservoir, Y or the purpose set forth.

, 3. In combination, a, car-body bolster, a.

center-bearing plate secured to the under side thereof, a truck-bolster having a socketmember, a. bearing-piece, interposed between the bolsters, having a ball-inember engaging-said socket-member and forming therewith a ball and socket connection between thebearing-piece and truck-bolster,

and an annular ball-bearing between said bearing-piece and center-bearing plate.

4.' In combination, a car-body bolster, a

center-bearing pla'te secured thereto and having a central (socket in its under side, a truck-bolster having a socket-member, abearing-piece, interposed between the bolsters, having a central boss on its upperside loosely entering said central socket in the center-bearing plate, and a ball-member en gaging said socket-member, and an annular ball-bearing between said center-bearing plate and bearing-piece, said bearing-piece being hollow and perforated to form a lubricant reservoir andsupplier for the ball and socket connection.-

-' 5. In combination, a car-body bolster, a center-bearing plate secured thereto and having a central socket in its under side, a truck-bolster having asocket-member, a bearing-piece interposed between the bolsters, having a central boss on its upper side loosely entering said central socket in the center-bearing plate, and a ball-member engaging said socket-inember, an annular ballbearing between said center-bearing plate and bearing-piece, and an annular tongue and groove connection between said bearingpiece and truck-bolster about said socketmember, said bearing-piece being hollow and perforated and forming a lubricant reservoir and supplier for the ball and socket connection.

CHARLES H. ANDERSON,

In the presence of MORRIS B. SAol-is', v R. E. BANKS. 

